Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.839479E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T04:57:30+0800
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    1 Object 1

    AOE ID 59737
    NORAD ID 59737
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 59892
    NORAD ID 59892
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-31821 STARLINK-31977
    Time of Closest Approach 2026-10-29T23:27:36+0000
    Collision Probability (Pc) 2.839479E-6
    Conjunction Distance (km) 1.607 km
    Relative Speed (km/s) 5.617 km/s
    Conjunction Risk Parameters R (Radial): 1.311 | I (In-track): -0.862 | C (Cross-track): 0.346
    Collision Risk Index (CRI) 0.44
    X Position (km) -5396.863 -5395.868
    Position Y (km) 211.692 210.723
    Position Z (km) -4232.867 -4232.061
    Velocity X (km/s) 1.452 -2.008
    Velocity Y (km/s) -7.148 -7.01
    Velocity Z (km/s) -2.207 2.216

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31821 STARLINK-31977
    Semimajor Axis (a) 6861.220 km 6860.345 km
    Eccentricity (e) 0.000482 0.000458
    Inclination (i) 42.9723° 42.9996°
    RAAN 315.4542° 250.4667°
    Perigee Argument 274.0108° 303.6777°
    Mean Anomaly (M) 86.0192° 56.3638°
    Apogee 486.389 km 485.348 km
    Perigee 479.777 km 479.068 km
    Orbit Epoch 2026-10-27T07:37:19+0000 2026-10-27T05:50:41+0000

    STARLINK-31821 & STARLINK-31977 Collision Probability (Pc) Trend

    STARLINK-31821 & STARLINK-31977 Collision Probability (Pc) TrendNot Available

    STARLINK-31821 & STARLINK-31977 Miss Distance (Miss Distance) Trend

    STARLINK-31821 & STARLINK-31977 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31821Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31977Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31821Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31977Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31821

    No nearby objects data